Global Patent Index - EP 3260921 A1

EP 3260921 A1 20171227 - IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD

Title (en)

IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD

Title (de)

BILDERZEUGUNGSVORRICHTUNG UND BILDERZEUGUNGSVERFAHREN

Title (fr)

APPAREIL DE FORMATION D'IMAGES ET PRODÉDÉ DE FORMATION D'IMAGES

Publication

EP 3260921 A1 20171227 (EN)

Application

EP 17161860 A 20170320

Priority

JP 2016122560 A 20160621

Abstract (en)

The image forming apparatus of the present embodiment has two limiters composed of a conventional high order limiter and a low order limiter, and carries out control to switch the limiter according to a temperature and a humidity so as not to reach a image contrast potential equal to or greater than those limiters. Carrier development can occur if image formation is performed in a state where the image contrast potential is high. Therefore, by providing a low order limiter as in the present embodiment and carrying out control so as not to exceed the low order limiter at the time of the image formation, a occurrence of the carrier development can be suppressed, and a image density can also be within a prescribed range.

IPC 8 full level

G03G 15/06 (2006.01)

CPC (source: EP US)

G03G 15/065 (2013.01 - EP US); G03G 15/2039 (2013.01 - US); G03G 21/20 (2013.01 - US); G03G 2215/00772 (2013.01 - EP US); G03G 2215/00776 (2013.01 - EP US)

Citation (applicant)

JP 2011065158 A 20110331 - TOSHIBA CORP, et al

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 3260921 A1 20171227; JP 2017227710 A 20171228; US 10067469 B2 20180904; US 2017364026 A1 20171221; US 2018341216 A1 20181129

DOCDB simple family (application)

EP 17161860 A 20170320; JP 2016122560 A 20160621; US 201715446351 A 20170301; US 201816055322 A 20180806